c/elevator-mechanics

Tried a new grease on the governor and now the whole thing's chattering

Had this old Otis governor in a building downtown that was running a bit rough, so I figured I'd try that high-temp synthetic grease everyone's been talking about online. Put it on last Thursday, and by Monday the whole assembly was making this awful chattering noise on every trip. Turns out the new stuff was too thin for the worn bushings (which I should have checked first, I know). Spent half my shift today cleaning it all out and going back to the old heavy-duty stuff. Has anyone else had a specific grease cause more problems than it solved on older gear?

Spent $400 on a new headset for the hoistway intercom and it's a game changer.

The old one kept cutting out on high floors, making it tough to hear the guys in the pit. This new one has noise canceling and a way better mic, so we can actually talk while the car is moving. Anyone else upgrade their comms gear recently and have a brand they like?

Shoutout to my old foreman in Tacoma who told me to always carry a 3/8 inch drive ratchet

I thought it was just extra weight for years, but last month I was stuck in a shaft with a stuck sheave bolt. My 1/2 inch wouldn't fit in the gap, but the smaller ratchet got it loose in two minutes. Anyone else have a tool they thought was useless that saved a job?

Had to choose between a stuck door and a stuck car in a 70s building

Got a call for a building downtown where the elevator would stop three inches above the floor, and the manager gave me the classic 'just pick one to fix first' line. I went for the door interlock because the car was still moving, and wouldn't you know it, the whole thing just needed a good cleaning. Ever have a boss push you to make a quick call that turned out to be way simpler than it looked?

Working on a 40 story building in Chicago changed how I check door locks

I was doing a full inspection on a bank of six elevators. On the 35th floor, a tenant held the door open for a delivery and the car tried to move. The door lock was worn just enough to let it slip. Now I carry a 0.015 inch feeler gauge in my kit. I check every single lock roller for that exact gap before I sign off on a job. It adds maybe 10 minutes per car but it's worth it. What's your go-to check for door lock safety that you added after a close call?

Shoutout to the old timer in Philly who said 'listen to the car, not the call sheet'

We were stuck on a weird intermittent door fault in a 90s Dover, and he just put his hand on the guide rail and waited. He said 'the shake tells you more than any fault code.' Ever since, I spend the first five minutes just watching and feeling the run. Anyone else have a simple trick that beats the computer every time?

I tried a new way to check door force on a 20-year-old Otis and it saved me an hour

Last Tuesday I was on a service call for a slow door close complaint on a 2003 Otis Gen2. The old way I learned was to use a spring scale on the door panel, which always felt clunky and gave me a rough number. This time I borrowed a digital force gauge from a buddy. I hooked it up and ran the door through a full cycle. The digital readout showed me the exact peak force, 32 pounds, and even logged the whole curve on my phone. Seeing the graph made it obvious the force spiked right at the start of the close, which pointed straight to the guide rollers being shot, not the motor. I swapped the rollers in 15 minutes and the door was perfect. That gauge cost about 300 bucks but it turned a guess into a sure thing. Has anyone else switched to digital for door force checks on the older units?

Honestly, the old school mechanical governor versus the new digital one on that 90s Otis was a real eye-opener

We were troubleshooting a floor leveling issue on a 12-story building, and my partner insisted on plugging in the fancy new digital analyzer first. Tbh, after 45 minutes of error codes, I just listened to the flyball weights on the original governor and found a worn pawl in 10 seconds. Anyone else find the simple fix beats the flashy tech sometimes?

Rant: I thought those new wireless testers were just a gimmick until a job in Seattle

Honestly, I was convinced my old Fluke multimeter was all I'd ever need and that the wireless ones were just expensive toys. Then I got stuck trying to diagnose an intermittent fault on a 15-story bank building's controller from the machine room, and the wireless unit let me monitor the car top signals from the pit without running a 200-foot lead. What specific wireless tools have you guys actually found reliable enough for daily use on commercial jobs?

Dropped $300 on a new digital governor tester and it just bricked on the third job.

Got it from a supplier in Chicago, figured it would save me hours on the older Otis units we see a lot. Worked fine for two setups, then on a 90s mod it just went blank. No error, nothing. Supplier says it's a firmware thing they can't fix, only replace for another $150. So now I'm back to the old analog box and out a bunch of cash. Anyone have a digital tester they actually trust that won't die on a basic voltage check?

Had a lightbulb moment about door zone adjustments at a hospital in Tacoma

Watched a new guy spend 20 minutes fighting a door that just needed a 1/8 inch shim on the bottom roller. Ever since, I start every door job with a level on the sill first. What's your go-to first check for a fussy door?

Heard a veteran mechanic in Seattle say 'the best tool is a quiet machine' after a repair, and I used to think the opposite.

I was finishing a motor brake adjustment on a 10-year-old Otis unit and realized the silence meant everything was seated perfectly, no binding, which changed my whole approach to judging a job's quality. Has anyone else had a simple sound clue completely shift how you do a final check?

Showerthought: The old city hall elevator went from weekly callbacks to zero in a month after we swapped the controller.

It was a 1978 relay panel that finally died, and the new solid-state one we put in just runs smoother (and quieter, honestly). Anyone else seen a jump that big just from a controller swap?

I finally understood why that old hotel elevator kept tripping the overload

I was working on a 1980s traction unit in a downtown hotel last month, and the overload would cut out every afternoon. I checked the weights and the motor, but it was fine. Then I watched the cleaning crew load their big, heavy cart on the 10th floor for three days straight. They were hitting the call button, then rolling the cart on, which was just enough extra sudden weight to trip the old relay. Explained it to their manager and we set a simple loading procedure. Has anyone else had a weird, repeated user habit cause a fault that looked purely mechanical?

Spent three hours chasing a phantom door lock fault that turned out to be a single, perfectly wedged Skittle

Honestly, the call was for a hotel car in Dallas that kept faulting on door close, and after checking every sensor and switch twice, I found the culprit was a red candy jamming the sill roller, which the night cleaner confirmed a guest had dropped during a 'vibrant' party the evening before.

A veteran mechanic in Philly called my hoist rope dressing method 'a waste of good product'

He watched me slather dressing on a full 5/8" rope during a modernization job last month and said, 'Kid, you're just making it drip. A thin coat on a clean rope lasts longer.' I switched to wiping it on with a rag instead of spraying, and the ropes on my last three jobs have stayed cleaner. Anyone else get schooled on something basic they thought they had down?

Warning: The $200 laser level that seemed like a lifesaver almost got me fired

I bought this fancy laser level for lining up door sills in a new high rise downtown, thinking it would save me a ton of time. The thing worked great for the first two floors, then the battery died mid-job and the auto-shutoff left a mark a quarter inch off. My foreman came by, saw the mistake, and I had to redo three doors by hand. Anyone else have a tool that promised the world but just made more work?

Pro tip: My foreman said to always carry a spare 5/16 hex key for those old Dover door operators, and it saved my butt yesterday.

Got stuck on a 1970s job in Cincinnati with a stripped adjuster, and that key was the only thing that got the car level. What's the one random tool you guys always keep on you?

Spent 5 hours tracing a door zone fault that ended up being a single bad wire in a 90s Dover panel.

A call at the old Grandview Hotel taught me to always check the pit first

Got a late night call for a stuck car on the 8th floor, and the hotel manager was freaking out. Spent an hour checking the controller and motor, only to find a whole wedding cake, box and all, had fallen down the hoistway and jammed the guide rails at the bottom. The bride had left it in the hall for the morning. Now I pop that pit door open before I even look at the machine room. Anyone else had a pit find that made you feel a bit silly?

Warning: I used a generic brand of roller guide shoes on a residential job last month and they wore out in 3 weeks, but the OEM ones from the manufacturer are still perfect.

Honestly, the difference was the metal hardness and the bearing quality, which just shows you can't cheap out on the parts that take all the friction, right?

Question about a hydraulic line blowout on a 90s Dover

Had one let go on the third floor of a bank building in Omaha. The mineral oil spray coated everything, including the controller. Took a full shift just to clean before we could even start the repair. Anyone else have a good method for containing that kind of mess fast?

Hot take: I used a cheap laser level on a hoistway plumb check and it was dead on

I was working on a 12-story retrofit in Phoenix and my good level was in the truck. I grabbed a $40 laser level from the supply house just to get a quick idea. I ran it from the top down and cross-checked with a plumb bob at three floors. The readings were within an eighth of an inch every time. I'm not saying I'd trust it for final sign-off, but for a fast check it saved me a ton of time. Has anyone else found a budget tool that works way better than it should for certain jobs?

Hot take: The old guys who could diagnose a relay problem by sound are a dying breed.

I was a green helper in a 1970s office building in Cincinnati, and this old timer named Frank just listened to the door operator for about ten seconds. He said, 'The latch is dragging, third floor, south shaft.' He was right on the money. Anyone still work with someone like that?

Changed my mind about using a laser level for hoistway alignment

I always thought a good old plumb bob was the only way to get a true vertical line for a new install. Last month on a job in Cincinnati, my foreman made me try his DeWalt DW088K laser level to set the guide rails. The laser was dead on and cut our setup time for the first three floors by almost two hours. What's your go-to method for checking hoistway plumb?